- All sections
- C - Chemistrymetallurgy
- C23C - Coating metallic materialcoating material with metallic materialsurface treatment of metallic material by diffusion into the surface, by chemical conversion or substitutioncoating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general
- C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
Patent holdings for IPC class C23C 2/02
Total number of patents in this class: 1483
10-year publication summary
|
96
|
108
|
133
|
95
|
84
|
113
|
98
|
115
|
116
|
57
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7465 |
346 |
| Nippon Steel Corporation | 6814 |
230 |
| ArcelorMittal | 2654 |
205 |
| POSCO Co., Ltd. | 1970 |
129 |
| ThyssenKrupp Steel Europe AG | 989 |
49 |
| POSCO | 2147 |
46 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
39 |
| Fontaine Holdings NV | 60 |
25 |
| Voestalpine Stahl GmbH | 385 |
24 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
21 |
| Hyundai Steel Company | 526 |
20 |
| Baoshan Iron & Steel Co., Ltd. | 1096 |
19 |
| Tata Steel Ijmuiden B.V. | 323 |
17 |
| Salzgitter Flachstahl GmbH | 163 |
14 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
13 |
| ThyssenKrupp AG | 3436 |
12 |
| BlueScope Steel Limited | 211 |
10 |
| ArcelorMittal France | 69 |
9 |
| Kobe Steel, Ltd. | 902 |
9 |
| Fives Stein | 108 |
7 |
| Other owners | 239 |